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Slate Roof Cleaning in Limerick

Cleaning a slate roof costs €900–€3,500+ in Limerick, more than tiles, because natural slate is fragile and the moss comes off by hand, slowly.

Slipped and cracked slates are found and shown to you before anything is priced.

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Free, no obligation. One local company prices it, not five.

  • €900–€3,500+a slate roof cleaned
  • 43%of Limerick homes built before 1981
  • €10–€20 per m²scraped by hand, by area
  • Neverpressure washed

Before and after

Jobs shared by the Irish companies that did them. Each says where it was.

Before: Slate roof of a church, moss removed, Co. Meath
After: Slate roof of a church, moss removed, Co. Meath
Slate. Slate roof of a church, moss removed, Co. MeathCushions of moss off the slates and out of the valley gutter, by hand.
Before: Slate roof, moss scraped off by hand, Co. Meath
After: Slate roof, moss scraped off by hand, Co. Meath
Slate. Slate roof, moss scraped off by hand, Co. MeathBefore: moss in every joint. After: the same roof from the ridge, cleared.
Upload a photo of your roof and see it without the moss in about a minute. Free. Your photo isn't kept.

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Your photo is read by Google's Gemini service to spot what the roof needs. Nothing goes to a company until you ask for a price.

Cleaning a slate roof

  1. InspectCracked, slipped and missing slates, lead flashings and ridges. Moss often hides them.
  2. AccessRoof ladders or crawling boards, or scaffolding on a tall or period house. Slate isn't walked on like tiles.
  3. Scrape by handSlowly, from the top down, so no slate is lifted or cracked.
  4. Moss killer, low pressureTo kill what's left. Then the gutters are cleared.

What a slate roof costs

Typical prices for typical roofs, by house and by method.

JobTypical priceWhat moves the price
Slate roof, any house€900–€3,500+Slate is scraped by hand, slowly
Moss scraped off by hand€10–€20 per m²Thick moss in every joint
Moss killer (biocide) on its own€4–€10 per m² extra, from about €200 for a bungalow re-treatSprayed at low pressure, left to work
Gutters and downpipes cleared€60–€200Done with the roof, it's at the low end

A guide for typical Limerick roofs. Your price is fixed by the company once they've seen the roof or your photos. Ask for it in writing, with VAT, the biocide and the gutters shown.

What's included

  • A look at the tiles, slates, ridge and flashings first
  • Moss off by hand, top down, never blasted
  • A moss killer (biocide) at low pressure, to kill the roots
  • Gutters and downpipes cleared of the moss
  • The ground swept and the moss bagged

What pushes it up or down

  • Up: slate, thick moss, a tall or steep roof, scaffolding, broken tiles to fix
  • Down: a low bungalow, light growth, gutters done on the same visit
  • VAT on cleaning at a house is the reduced rate, 13.5%
  • A yearly moss killer re-treat costs far less than a full clean

More on roofs

Every roof is cleaned by hand and at low pressure, whatever it's covered with.

Moss being scraped off a slate roofRoof moss removalOff by hand, then a moss killer at low pressure. Never blasted.Moss removal →A tiled roof being cleaned in LimerickTile roof cleaningConcrete tiles brushed and treated, so the surface isn't stripped.Tile roofs →A slate roof after moss removalSlate roof cleaningNatural slate scraped slowly, cracked slates found and shown to you.Slate roofs →A fascia and gutter line being cleaned from a long poleGutter cleaningWhere the moss ends up. Gutters and downpipes cleared.Gutters →A slate roof after cleaning, Co. MeathSoft washA cleaning solution at low pressure that kills the growth.Soft wash →A tiled roof with solar panels after cleaningPrice guideWhat a terrace, semi, detached or bungalow costs.Prices →

Slate roof cleaning across Limerick

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Questions we get asked

How much does slate roof cleaning cost?

€900–€3,500+, depending on the size of the roof, the access and how much moss there is.

Why is slate dearer to clean than tiles?

It's slower and riskier. Natural slate can crack if it's walked on the wrong way, and older slate roofs often need roof ladders or scaffolding.

Can you pressure wash a slate roof?

No. High pressure cracks old slates and forces water under the ridge. Slate is scraped by hand.

What if a slate breaks?

A careful clean doesn't damage a sound roof. The company looks for cracked and slipped tiles and loose ridge mortar before it starts, shows you what it found, and prices any repair separately before doing it.

Who comes out?

One vetted local roof cleaning company that covers Limerick. Your number isn't sent to a list. They ring you, ask about the roof or look at your photos, and give you a fixed price. Nothing is booked until you say yes.

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